A day's timetable lists four activities with start and end times, such as 11:30 to 2:00. The student works out how long each one lasts, then picks the list that orders them from longest to shortest (or the other way).
The timetable runs in time-of-day order, which looks like a plausible answer but never is. Durations are all different multiples of 15 minutes, so there are no ties.

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